And is there a way to avoid this scarcity if your nation has not achieved a good rank?
Don't be uncivlised, they share the whole market with their overlord, while civilised do only share 20 percent or 30 or so, produce the stuff yourself,
have good techs to increase RGO or factory production. Check what your produce and if you use the ressource some other way.
Coal and iron are used a lot simply for maintenance of factories, also the case for cement.
Machine parts are used for maintenance. Regarding maintenance, steel is also used by ships.
So a lot of goods are simply used to keep a factory working or unit runnning, not only to produce or consume something.
Aside of that,..
- get your admininstration closer to 100% to increase taxes and reduce crime.
- get aforementioned the and education up to simply help POPs to get out of unemployment and poverty.
- With high admin and education the status changes of your POPS wil be higher and thus required changes for examples artisans to either promote or demote.
-> more taxes, while also higher needs, but that's how it goes and should pay for itself.